JS close window or JS close page of several code sharing

The first: JS timing automatically close the window

<script language="javascript">
<!--
function closewin(){
self.opener=null;
self.close();}
function clock(){i=i-1
document.title=" This window will be in "+i+" Automatic shutdown after seconds !";
if(i>0)setTimeout("clock();",1000);
else closewin();}
var i=10
clock();
//-->
</script>

Second: click on the link to close the window without prompting JS

<a href="javascript:self.close()" > Close the window </a>
 The third kind: the window does not prompt to close automatically js code 
<script language=javascript>  
<!--  
this.window.opener = null;  
window.close();  
//-->  
</script>

Third: PHP code after the submission window prompt message and automatically close the window js code

document.write "<script language=javascript>alert(' Your message was sent successfully, we will timely contact you after we see it! ');opener=null;window.close();</script>"

Automatically return the code of the previous page:

document.write("<script language=""JavaScript"">alert("" Your message was sent successfully, we will timely contact you after we see it! "");history.go(-1);</script>")

Ie6-7 JS method to close Windows without prompting

Method one:
Js code

function CloseWin() //This does not prompt whether to close the browser & NBSP;    
{    
window.opener=null;    
//window.opener=top;    
window.open("","_self");    
window.close();    
}    

Method 2:
Open the HTML

js  code 
function open_complex_self() {    
var obj_window = window.open('close.html', '_self');    
obj_window.opener = window;    
obj_window.focus();    
}    

Close the HTML
Js code

window.close();   

Attach:

//Normal tape prompt closed
function closeie(){
window.close();
}
//Close IE6 without prompting
function closeie6(){
window.opener=null;
window.close();
}
//Close IE7 without prompting
function closeie7(){
window.open('','_top');
window.top.close();
}